Is there anyway to group objects that are "similar" to all do the same action

such as

Object 1 and Object 2 are in Group A

Group A Objects leaves the play area on the left -> Stop

Instead of having to do this for each Object as so:

Object 1 leaves the play area on the left -> Stop
Object 2 leaves the play area on the left -> Stop

so when you have something like 100 objects, you group them all and have 1 event for the group... instead of 100 events for each object.

I am aware of
Create "Object " + Str$(RRandom(1, 100 ) )
to seed these random objects